Ventilator



(No Model.)

P. R. ADDGMS.

VfBNTLAToR.

Patented June 1, 1886.

Mewom.

To all whom it may concern,.-

UNITED STATES PATENT OEEICE.

PHEBE BOSALIE ADDOMS, OF BROOKLYN, NEW YORK.

VENTILATOR.

SPECIFICATION forming part of Letters Patent No. 342,989, dated June 1,1886.

Application filed December 14, 1885. Serial No. 185.621.

Beitknown that LPHEEERosALiE ADDoMs, a citizen of the United States,residing at Brooklyn, in the county of Kings and State of New York, haveinvented new and useful Improvenients in ventilators, of which thefollowing is a specification.

This invention relates to ventilators to be used between the top end ofthe upper sash and the top of the window-frame.

The'olojects of the invention are to provide novel means whereby theinflow of air-currents are caused to ascend and are prevented fromdirectly descending upon the occupant or occupants of the apartment.

The invention also has for its objects to provide novel means foropening and closing the screen through which the air-currents enter, andto provide novel means whereby the ventilator can be made to fit windowframes and sashes of varying widths.

The objects of my invention I accomplish by the construction andcombination of devices hereinafter described and claimed, referencebeing made to the accompanying drawings, in which- K Figure 1 is aperspective view of a portion of a window-frame, showing my ventilatorapplied thereto; Fig. 2, a central longitudinal sectional view of theventilator, and Fig. 3 a perspective view of the hinged panels or doorsdetached from the screen-frame.

Inv order to enable those skilled in the art to make and use myinvention, I will now de scribe the same in detail, referring to thedrawings, where the numeral 1 indicates a rectangular board or framehaving a central recti; linear opening, over which is secu rel yfastened the wo-velrwire screen 3, the attachment ofthe screen to theframe being accomplished by strips 4, fastened by nails or otherwise.The lower edge of the frame is provided with an inwardly projectingimperforate shield, 5, which isapproximately V-shaped in configuration.To'the angle of the shield is attached a vertical` rod, 6, connected atits upper end by a rod, 7 to the frame. An eye or pulley,

, 8, is attached to the upper portion of the rod 6, and a similar eye orpulley, 9, is secured to the frame, adjacent to the rod 7. The inside ofthe frame 1, at a dist-ance from the ends (No model.)

thereof, is provided with two vertical strips, 10, so as to leaveconsiderable portions of the frame projecting beyond the said strips. Tothese strips are respectively hinged at 11 panels or doors 12, so as toswing laterally in a horizontal plane toward and from the screen of thcframe. The adjacent ends of these panels or doors are rabbeted, as at13, so as to overlap each other, and they are provided at their uppersides and near their adjacent ends with eyes 14, to which are securedtwo cords, 15 and 16, one cord, 16, passing from its at tached endthrough the eye or pulley 8 t0 andA through the eye or pulley 9 ou theframe. The other cord, 15, simply passes from its attached end through`the eye or pulley 9. By drawing on the cord 16 the two panels or doorswill be swung outward away from the screen. Ifthe cord 15 be now drawn,it moves both panels or doors toward the screen, these simultaneousswinging movements 0f the panels or doors being due to the adjacent endsthereof engaging or overlapping.

The manner of applying the ventilator is to lower the upper sash andplace the rectangular frame in the opening, so that the top of thewindow-frame and the top of the upper sash will confine the ventilatorin proper position. Bolts may be used as additional fastening devices,if desired. The ends of the board or frame 1 projecting beyond thehinged portions of the panels or doors enable me to fit the frame towindows of varying widths, as portions of said projecting ends can beeasily cut off until the length of the frame is such as to correspondwith the width of the windowframe. r1`l1e shield at the lower edge ofthe board o1' frame and the panels or doors prevent the air-currentsentering the screen and directly descending upon the person orpersonsoccupying the room where the ventilator is used. I prefer the panels ordoors to be constructed with panes of glass, but do not confine myselfthereto, as any suitable panel or door can be employed.

Some of the parts of the ventilator may be of any material, such asglass, wood, papiermache, or metal.

In order to limit the outward swinging movements of the panels or doors,`I provide the i outer edge of the V-shaped shield with rails 17 17,which rise above the upper surface of the shield, and against which thepanels or doors will strike and be held against undue outward movement.These rails also provide a tightjoint where the panels are open to thefull extent.

In the practical use of the ventilator the in flux of the air-currentsth rough the screen strike the panels or doors when the latter are open,and are thereby delected upwardly toward the ceiling, and theair-currents cannot pass downward by the'provision of the imperi'oratebottom shield.

Having thus described my invention, what I claim is l. A ventilator foruse at the top ofa window, consisting of arectangular frame having ascreen and an attached imperforate shield at its lower edge, two panelsor doors having their adjacent ends overlapped or engaged and pivg otedto the frame to swing laterally in a horizontal plane above the shield,and cords and eyes for simultaneously swinging the panels, substantiallyas described.

2. A ventilator for use at the top of a win-A dow, consisting of therectangular frame having a screen and the imperforate bottom shieldhaving stop-rails at its outer portion, and two panels or doors hingedto the frame to swing laterally in a horizontal plane and limited intheir outward movement by the stop-rails on the shield, substantially asdescribed.

3. The combination ofthe rectangular frame, the attached screen, and thehorizontal bottom shield with two panels or doors hinged to the innerside of the frame to swing laterally in a horizontal plane,substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

PHEBE ROSALIE ADDOMS.

"Witnesses:

JOSEPH KELLY, FRANKLYN KELLY.

